Its not exactly a literal statement. Murder in the general sense is bad for society no? The people that use the phrase murdering a baby, think they are stopping it for the betterment of mankind. It's the same logic that makes people push religion.

They think you and the world will be better for it. Its certainly not my argument

>Is the danger that God grabs his ban hammer and stomps western society because a woman living as part of that society decided to end a pregnancy?

Being scared of the ban hammer is history for the last 300 years of Catholicism.